feat: linux nr infra pck download agent type #3435

Job	Run time
codespell	11s
Unit test for embedded downloader	36s
Unit, docs and onhost integration tests (windows-latest)	2m 8s
K8s integration tests (part2)	3m 15s
Unit, docs and onhost integration tests (ubuntu-latest)	2m 1s
cargo doc (windows-latest)	3m 13s
security / Rust audit scanner	2m 53s
tests as root (windows-latest)	3m 23s
K8s integration tests (flux-self-update)	3m 58s
k8s-e2e-tests / K8s e2e tests infra	3m 13s
K8s integration tests (part1)	3m 12s
tests with oci registry (ubuntu-latest)	3m 11s
tests with oci registry (windows-latest)	3m 20s
Build release binaries	5m 14s
ubuntu / stable / coverage	3m 25s
cargo clippy (ubuntu-latest)	41s
cargo clippy (windows-latest)	2m 7s
cargo doc (ubuntu-latest)	1m 43s
cargo shear (unused dependencies) (ubuntu-latest)	13s
cargo shear (unused dependencies) (windows-latest)	1m 38s
⚖️ Check third party licenses	3m 24s
cargo fmt	14s
tests as root (ubuntu-latest)	3m 14s
k8s-e2e-tests / K8s e2e tests	3s
🟢 All required checks and tests pass	4s
	56m 34s

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